What's the difference between a psychopath, sociopath, borderline personality disorder, and narcissism?

Personality problems: Psychopath and sociopath describe someone who lies, cheats, steals, exploits others, and has no remorse -- like antisocial personality disorder. Narcissistic pd exploits others too, but they feel entitled and there's not so much lying. Antisocial does it b/c he feels everyone else does it. Borderline pd needs others desperately & falls apart when rejected. Dramatic, unstable, self-injuring.

Sometimes overlap: Psychopath -- lacks conscience sociopath --- recurrently in legal trouble borderline --- unstable relations with people, fluid identity, feelings of emptiness and boredom narcissism -pathological overvaluation of the self often in reaction to defects in self esteem. These conditions sometimes overlap.

Disorders: A psychopath/sociopath are the same thing as antisocial personality disorder. this is a person with no real conscience or sense of right and wrong. Borderline PD is the person who has a disturbed sense of self, is emotionally volatile and over the top, impulsive, terrified of abandonment, is black and white in their thinking and self mutilates. The narcissist is the grandiose, egomaniacal person.